Governor



.May 23, 1933. A HQQF 1,910,899

' GOVERNOR Filed April 11, 1930 fidgjjs' 7a (1][00 gy ova v Patented May23, 1933 UNITED STATES PATENT orn'ca ADDISON C. B001, 01' HINSDALE,ILLINOIS, ASSIGNOR TO THE CONTINENTAL ILLINOIS BANK AND TRUST COMPANY,OF CHICAGO, ILLINOIS, CORPORATION OF ILLINOIS GOVERNOR Application filedApril 11, 1930. Serial No. 443,265.

This invention relates to a governor and has for oneobject to provide agovernor adapted particularly for use in connection withinternalcombustion engines in which the governor is located somewhere in theintake line, so that the governor is afiected in its operation by theair which is drawn into the engine.

One object is to provide .a device. in which a member is used which ismoved by the movement of air into the engine and in which a resistanceis provided against movement of the member, this resistance beingprogressively increased as the movement increases. Another object is toprovide in connection with a governor of this general type a lockingmechanism. A further object is to provide an adjusting means whereby theoriginal resistance to motion of the governor may be adjusted. Otherobjects will appear from'time to time in the specification.

. and claims.

My invention is illustrated more or less diagrammatically in theaccompanying drawing, wherein:

Figure 1 is a sideelevation of a portion of the intake passage of aninternal combustion engine showmgmy governor in position;

' Figure 2 is a transverse cross section taken 'on line 2-2 of Figural;

Figure 3 is a cross section taken on line 3-3 of Figure 2;

Figure 4 is a cross section taken at line 4-4 of Figure 2.

Fig. 5 is a diagram showing a modified initial position of the gears.

Like parts are designated ters-throughout the specification and drawng Ais a portion of the intake passage of an internal combustion engine. Thecarbure- ,tor A maybe situated so as todischarge into' this passage. Thegovernor is located in the intake line of the engine and preferablybetween the carburetor and the combustion chamber.

The governor includes a housing B which is provided with a more or lessrectan ular bore or passage B. 'B is a cylindrical arby like charac-.

ing cavity formed in the chamber B. B B are holes formed in the member Bby means of which it may be attached in any suitable manner inconnection with the intake passage A.

Ash it C is journaled in the cavity. B and it has fastened to it a valvemember C whichapproximates the shape and size of the passage B Fastenedto the casting B is agovernor housing D, which may be lrreg'ularlyshaped as shown. At one end, as at D, it is preferably of reduced size.In the inside of the reduced portion D is formed an enlargement D Oneither side of the enlargement D which takes the form of a groove, thereremain members D D, which are rovided with bores D D respectively.

7 is a rojection extending into the interior of t e housing D. It isrovided with vided with a lug E which may fit into the notch D. At itsopposite end it is provided with a projection E which is perforatedas atE. This projection fits into the enlargement D when the cover plate isin osition.

F is an adjusting screw provide with. a reduced portion F at one end,which portion is adapted to be inserted into the perforation D in themember D. At its opposite end the screw is provided with an enlargedhead F which is notched as at F. The screw may'have in the' sides of theis providedwith a downof which the lock may be locked and unlocked androtation effected. The details of the locking mechanism are not shown asthey form no particular art of the present invention This su cient thata locking I I provided and. that the v adjusting projecting member G"which,when

. head F a groove F, within which a lockin a screw can be locked againstmovement and can be unlocked to permit movement.

H is an adjusting screw nut. It is provided with a flat side H adaptedto bear against the interior of the wall of the housin in the reducedportion D. It is provi ed with a threaded perforation H within which theshaft of the screw F is threaded. Rotation of the screw causeslongitudinal movement of the nut. Extending from one side of the nut isa projection H provided with a perforation H. v

A spring I is fastened at one end in the perforation H of the projectionH.

The shaft C .projects at'one end into the housing D. At that end andwithin the housing, it has eccentrically mounted upon it an ellipticalgear J.

Mounted in the'boss D which is provided with a perforation, is a shortshaft K. Eccentrically supported on this shaft is a second ellipticalgear K which is in mesh with the first mentioned elliptical gear J. Thegear K' may have a plurality of perforations or other positions ofattachment K formed in it. In one of these a pin K is positioned. Oneend of the spring I is fastened on the pin K It will be realized thatwhile I have shown and described a practical operative device,nevertheless many changes might be made in the size, shape, number anddisposition of parts without departing materially from the spirit of myinvention and I wish, therefore, that my showing be taken as in a sensediagrammatic. In particular, the initial position of the gears beforemovement of the butterfly valve takes place might be altered. As hereshown, the longest radius of the gear K is opposite the shortest radiusof the gear J. This might be -the arrangement but is not necessarily thearrangement. The gears might in their initial position be arranged inalmost any other manner, as for example, the position indicated inFigure 5. The initial position of the gears might thus be almostinfinitely varied to suit the varying requirements of a very wide rangeof engines. The gears might be of different sizes and for some purposesit would be satisfactory to have the attachment of the spring on thegear carried by an extension which might project radially or axiallybeyond the gear.

The use and operation of my invention are as follows:

The invention may be embodied in any mechanism in which the movement ofa fluid through a passage is to be controlled. In the form illustratedit is applied to control an internal combustion engine. It thus acts asa speed governor for the engine. The spring tension being adjustable isoriginally set or adjusted so that the force acting upon the butterflyvalve as the result of the movement of the fluid past it will bebalanced by the resistance to movement caused by the spring and thus thegovernor acts to control the size of the passageway through which fuelmay move into the engine and by reason.

shaft carries rotates with it, thus rotating the second elliptical gearwith which it meshes. One end of the tension spring is'attached to thissecond elliptical gear. As the gears move in the direction indicated bythe arrows in Figure 3, the tension spring is constantly stretchedfurther and as the gear to which it is mounted continues to move, the

radius of motion is increased and thus the power required to stretch thespring further increases in proportion as the movement of the butterflyvalve continues and thus with each added increment of movement of thevalve, the resistance to further movement increases in an increasingproportion.

I claim:

1. In combination in a mixture flow governor for an internal combustionengine, a housing provided with a portion adapted to be inserted in thefuel supply line of the engine, and a portion attached thereto, adaptedto include a resistance mechanism, comprising a movablymounted shaftpositioned partly in each of the housing parts, a member fixed to saidshaft projecting within the fuel supply line, an elliptical gear at theopposite end of said shaft, a second elliptical gear meshing with saidfirst gear, a spring positioned at one end upon said second gear, and atthe other end upon a mounting' 2. In combination in a mixture flowgovernor for an internal combustion engine, a housing provided with aportion adapted to be inserted in the fuelsupply line of the engine, anda portion attached thereto, adapted to include a resistance mechanism,comprising a movably mounted shaft positioned partly in each of thehousing parts, a member fixed to said shaft projecting within the fuelsupply line, an elliptical gear at the opposite end of said shaft, asecond elliptical gear meshing with said first gear, a spring adjustablypositioned at one end upon said second gear, and at the other end upon amounting.

3. In combination in a mixture flow governor for an internal combustionengine, a housing provided with a portion adapted to be inserted in thefuel supply line of the engine, and a portion removably attachedthereto, adapted to include a resistance mechanism, comprising a movablymounted shaft positioned partly in each of the housing parts, a memberfixed to said shaft projecting within the fuel supply line, anelliptical gear at the opposite end of said shaft, a second ellipticalgear meshing with said first gear, a coil spring adjustably positionedat one end upon said second gear, and at the other end upon a mounting,a lock controlled means for varying the position of said adjustablemounting.

4. In a fluid flow governor for internal combustion engines, a membermovably positioned in the intake passage of the engine, adapted to bemoved by the flow of fluid toward the engine, in combination with a pairof elliptical gears in mesh with each other, means for causing one ofthem to rotate in response to movement of said first mentioned member,said elliptical gears being so positioned that before movement a longerradius of one gear is opposite a shorter radius of the other.

5. In a fluid flow governor for internal combustion engines, a membermovably positioned in the intake passage of the engine, adapted to bemoved by the flow of fluid toward the engine, in combination with a pairof elliptical gears in mesh with each other, means for causing one ofthem to rotate in response to movement of said first mentioned member, aspring adjustably attached at one end to one of said gears, saidelliptical gears being sopositioned that before movement a longer radiusof one gear is opposite a shorter radius of the other.

6. In a fluid flow governor for internal combustion engines, a membermovably positioned 1n the intake passage of the engine,

adapted to be moved by the flow of fluid toward the engine, incombination with a pair of elliptical gears in mesh with each other,means for causing one of them to rotate in response to movement of saidfirst mentioned member, a spring adjustably attached at one end to oneof said gears, said elliptical gears being so positioned that beforemovement a longer radius of one gear is opposite a shorter radius of theother, the spring so proportioned and positioned that during allpositions of movement of the gears its full length is uninterrupted andeffective.

7. In a fluid flow governor for internal combustion engines, a membermovably positioned in the intake passage of the engine. adapted to bemoved by the flow of fluid toward the engine, in combination with a pairof elliptical gears in mesh with each other, means for causing one ofthem to rotate in response to movement of said first mentioned member, aspring adjustably attached at one end to one of said gears, and mountedat its other end on an adjustable mounting, said elliptical gears beingso positioned that before movement a longer radius of one gear isopposite a shorter radius of the other.

8. In a fluid flowgovernor for internal combustion engines, a membermovably positioned in the intake passage of the engine, adapted to bemoved by the flow of fluid toward the engine, in combination with a pairof elliptical gears in mesh with each other, means for causing one ofthem to rotate in response to movement of said first mentioned member, aspring adj ustably attached at one end to one of said gears, and mountedat its other end on an adjustable mounting, said elliptical gears beingso positioned that before movement a longer radius of one gear isopposite a shorter radius of the other, the spring so proportioned andpositioned that during all positions of movement of the gears its fulllength is uninterrupted and effective.

Signed at Chicago, county of Cook and State of Illinois, this 4th day ofApril,

ADDISON C. HOOF. v

